1224000139 has 2 divisors, whose sum is σ = 1224000140. Its totient is φ = 1224000138.

The previous prime is 1224000137. The next prime is 1224000149. The reversal of 1224000139 is 9310004221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224000139 - 2¹ = 1224000137 is a prime.

Together with 1224000137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1224000133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612000069 + 612000070.

It is an arithmetic number, because the mean of its divisors is an integer number (612000070).

Almost surely, 2^1224000139 is an apocalyptic number.

1224000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224000139 is an equidigital number, since it uses as much as digits as its factorization.

1224000139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1224000139 is about 34985.7133555970. The cubic root of 1224000139 is about 1069.6962887402.

The spelling of 1224000139 in words is "one billion, two hundred twenty-four million, one hundred thirty-nine", and thus it is an aban number.